private void butXml_Click(object sender, EventArgs e) { List <Game> games = new List <Game>(); if (fastListView.SelectedIndices.Count > 0) { InfoItems inf = new InfoItems(); if (inf.ShowDialog() == DialogResult.OK) { Visibility.Update(); foreach (object item in fastListView.SelectedObjects) { Game g = (Game)item; g.Visibility = Visibility; g.Save(); } } } }